#3689D7#3689D7

#3689D7 is a mid, vivid cyan. Relative luminance 0.236; OKLCH L 61.7% C 0.143 H 250.2°. Best body text is #000000 at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3689D7
RGB	rgb(54, 137, 215)
HSL	hsl(209, 67%, 53%)
HSV	hsv(209, 75%, 84%)
CMYK	cmyk(74.9%, 36.3%, 0%, 15.7%)
CIE-LAB	lab(55.66, 1.45, -47.08)
CIE-LCH	lch(55.66, 47.11, 271.76°)
OKLab	oklab(61.72% -0.0483 -0.1341)
OKLCH	oklch(61.72% 0.143 250.2)
XYZ	xyz(22.7281, 23.5793, 67.6302)
Luminance	0.2358 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3689D7 #D78436

analogous

#36D7D4 #3689D7 #3639D7

triadic

#3689D7 #D73689 #89D736

tetradic

#3689D7 #D436D7 #D78436 #39D736

square

#3689D7 #D436D7 #D78436 #39D736

split-complementary

#3689D7 #D73639 #D7D436

monochromatic

#184B7A #226AAD #3689D7 #69A7E1 #9CC5EB

Accessibility & contrast

On white

3.67

#3689D7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.72

#3689D7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3689D7

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3689D7	#FFFFFF	#000000	##000000
##3689D7	1.00	3.67	5.72	5.72
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.72	21.00	1.00	1.00
##000000	5.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#658DDA

Deuteranopia (green-blind)

#4D7FD5

Tritanopia (blue-blind)

#009CA6

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3689d7;
/* rgb */ color: rgb(54, 137, 215);
/* oklch */ color: oklch(61.7% 0.143 250.2);

Tailwind

colors: {
  custom: {
    50: '#82abe4',
    500: '#3689d7',
    950: '#000000',
  },
}

SCSS

$custom: #3689d7;
$custom-light: #82abe4;
$custom-dark: #000000;

JSON

{
  "hex": "#3689d7",
  "rgb": {
    "r": 54,
    "g": 137,
    "b": 215
  },
  "hsl": {
    "h": 209.068,
    "s": 66.805,
    "l": 52.745
  },
  "oklch": {
    "l": 0.6172,
    "c": 0.14251,
    "h": 250.2
  },
  "luminance": 0.23582
}

Semantic roles & 50–950 ramp

primary

#3689D7

secondary

#D7B392

accent

#913EEA

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C1015

muted

#7D7F84

Preview Lab

Preview with #3689D7

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →